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Finding the Fourth Proportional to 662,767.60, 914,619.18 and 360,961.60

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Solution

The fourth proportional to 662,767.60, 914,619.18 and 360,961.60 is: 498,126.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,767.60 : 914,619.18 = 360,961.60 : x
  2. Step 2: Convert to fraction form
    662,767.60/914,619.18 = 360,961.60/x
  3. Step 3: Cross multiply
    662,767.60x = 914,619.18 × 360,961.60
  4. Step 4: Simplify right side
    662,767.60x = 330,142,402,603.49
  5. Step 5: Solve for x
    x = 330,142,402,603.49/662,767.60
  6. Step 6: Final answer
    x = 498,126.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.